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re PR tree-optimization/79663 (r244815 causes 10% regression for spec1k/172.mgrid...
authorBin Cheng <bin.cheng@arm.com>
Thu, 23 Feb 2017 22:02:01 +0000 (22:02 +0000)
committerJeff Law <law@gcc.gnu.org>
Thu, 23 Feb 2017 22:02:01 +0000 (15:02 -0700)
commitd822f3d585da1f9be6ab62245073625385a0e34f
treef2a285c3f42caa72a4e8a86c3183f86f8f56f88btree
parent06b909b07e840d648a425e0ede5947616354f11bcommit | diff
re PR tree-optimization/79663 (r244815 causes 10% regression for spec1k/172.mgrid on AArch64)

2017-01-21  Bin Cheng  <bin.cheng@arm.com>

PR tree-optimization/79663
* tree-predcom.c (combine_chains): Process refs in reverse order
only for ZERO length chains, and add explaining comment.

From-SVN: r245689
gcc/ChangeLog diff | blob | history
gcc/tree-predcom.c diff | blob | history